Aberrant renal vessels crossing the ureter and the ureteropelvic junction: A retrospective computed tomography-based analysis of non-obstructed population

doi:10.4329/wjr.127348

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World Journal of Radiology

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1949-8470

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Observational Study

Copyright: ©Author(s) 2026. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial (CC BY-NC 4.0) license. No commercial re-use. See permissions. Published by Baishideng Publishing Group Inc.

World J Radiol. Oct 28, 2026; 18(10): 127348
Published online Oct 28, 2026. doi: 10.4329/wjr.127348

Table 1 Demographic and anatomical characteristics of renal units exhibiting crossing vessels

Characteristic	Total/frequency (n = 56)	Percentage (%)	P value
Sex distribution (n = 56)
Male	39	69.6%	0.007^a
Female	17	30.4%	0.007^a
Laterality (n = 56)
Left	31	55.4%	0.504
Right	25	44.6%	0.504
Vascular etiology
Isolated artery	36	62.5%	0.884 (sex)
Isolated vein	6	10.7%	0.884 (sex)
Combined (artery and vein)	14	23.2%	0.306 (side)
Arterial variations (n = 50)
Early bifurcation of RA	42	84.0%	-
ARA	8	16.0%	-
Venous variations (n = 20)
Early bifurcation of RV	14	70.0%	-
ARV	6	30.0%	-
Topographical trajectory
Anterior	55	98.2%	-
Posterior	1	1.8%	-
Distance to UPJ
Direct Intersection (0 mm)	21	37.5%	0.380 (sex)
Distal Intersection (> 0 mm)	35	62.5%	0.380 (sex)
Mean distal distance ± SD	16.2 ± 4.5 mm		0.712 (side)

^aStatistically significant difference.

RA: Renal artery; RV: Renal vein; ARA: Accessory renal artery; ARV: Accessory renal vein; UPJ: Ureteropelvic junction.

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Citation: Paschopoulos I, Triantafyllou G, Gondorf D, Arkoudis NA, Velonakis G, Mariorakis C, Lyrtzis C, Gyftopoulos K, Piagkou M. Aberrant renal vessels crossing the ureter and the ureteropelvic junction: A retrospective computed tomography-based analysis of non-obstructed population. World J Radiol 2026; 18(10): 127348
URL: https://www.wjgnet.com/1949-8470/full/v18/i10/127348.htm
DOI: https://dx.doi.org/10.4329/wjr.127348

Paschopoulos I, Triantafyllou G, Gondorf D, Arkoudis NA, Velonakis G, Mariorakis C, Lyrtzis C, Gyftopoulos K, Piagkou M. Aberrant renal vessels crossing the ureter and the ureteropelvic junction: A retrospective computed tomography-based analysis of non-obstructed population. World J Radiol 2026; 18(10): 127348 [DOI: 10.4329/wjr.127348]

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